Cap of pen



FIG. 1 is a perspective view of the cap of pen according to the present invention;

FIG. 2 is a side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a first end view thereof; and,

FIG. 6 is a second end view thereof.

Dashed lines show internal structure only and form no part of the claimed design. 

The ornamental design for a cap of pen, as shown and described. 